just one question, dyno jet or mustang dyno? :confused:

I KNOW THEIR #S. ARE QUITE DIFFERANT. CURIOUS? :hurray:

 

Was this in OKC? I visit there from time to time and would love to put my 02 on the dyno.

 

Sweet.

- JeffMc :cheers:

 

It was a mustang dyno. 92soonerC4's numbers were from the same dyno.

And yes, the shop is HP Racing in OK City, just off I-35.

 

I'M GLAD IT WAS A MUSTANG, I'M GETTING MINE DYNOED TOMORROW & I
HAVE A COFFEE BET ON THE #S. I'LL POST RESULTS TOMORROW. :hurray:

I KNOW MY SIG. SAYS I HAVE 342 GEAR & SY3500 YANK, BUT THAT DOESN'T
GET INSTALLED UNTIL THIS WEEKEND. WILL REDYNO AFTER INSTALL & POST. :cheers:

 

JUST GOT BACK FROM THE DYNO. HERE'S THE #'S 272 RWHP.


LOOKED AT #'S FROM OTHER VETTE'S & FIREBIRDS OF YEAR 2001, & 2002

VERY SIMULAR #'S. I GUESS IT COULD BE THE DIFFERANCE IN DYNO'S

WAS ALSO TOLD THE TORQUE RATING IN THE COMPUTOR WAS SET AT 160 AND BY CHANGING THIS # THEY COULD MAKE MY #S ANYTHING I WANTED.


[Modified by clancy, 10:08 PM 1/23/2003]

 

:cheers:

 

Art, that also may be because his trans wasn't locked in 3rd either. That may be a little bit of torque multiplication, which, afterall, is a torque converters job. This is fairly normal.

If the trans had been locked in 3rd, just for the dyno runs, you might have seen slightly lesser values of torque AND the dyno operator could have nailed the gas at a lower RPM like 2500 or so. :cool:

 

Why do the graphs show the curves going to 7000rpms? Redline is 6200.

 

...not bad for an auto tranny! My numbers are in my sig. :cheers:

 

That's a great question, JimX. I just noticed that. It even looks like the first run went to 7200 RPM. I'm sure they didn't go there. I don't know much about Mustang Brand dynos, but on a Dynopjet, I believe this happens when a shop has a particular older bersion of the software OR a weight ratio in the software is off a bit. There are a few things a shop can do to inflate dyno numbers unscrupulously :mad and some do unfortunatley. But this was a Mustang Brand Dyno so ?????? :confused: What do you say, Art?

 

There is a problem with the graph from the second run. From what I see the HP and Torque curves are equal at just less than 5000 rpm. The equation for calculating horsepower from torque says they will be equal at 5250 rpm no where else. You can see on the first run (296 HP) the two are equal right at 5250.
Bill


[Modified by Bill Dearborn, 11:02 PM 1/26/2003]

 

hell i may sell my Z06 :rolleyes: if a stock auto can put down that kind of torque. at 1400 miles no mods here i only made 344 rwtq...

 

That's exactly my point. You can't get a decent dyno graph if you don't at least lock the trans in 3rd (via programming) and dig in at ~2500 RPM. That's what happens when the trans downdhifts and torque is multiplied. That's not an accurate dyno reading then.